HVAC Job Stories & Field Notes
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On a new addition for Bruno-Lepe Builders, we are installing two Midea 3 ton inverter heat pumps, a Broan ERV, and kitchen makeup air, with ductwork designed for low pressure drop and low leakage.
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Heat pump water heaters are refrigeration systems on top of a tank. Here is how they work, what usually fails, and why refrigeration experience makes for a better diagnosis.
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CO2 heat pump water heaters run at high pressures and depend on cold return water. Here is why servicing a SANCO2 or A. O. Smith Voltex X takes real CO2 refrigeration experience.
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A blocked evaporator coil call at a Stockton apartment complex turned into a rooftop reconfiguration: a new unit relocated 10 feet back for service clearance and new R-8 ductwork in 24-gauge KD pipe.
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An aging Amana furnace replaced with a new Ruud in a tight hallway closet. Here is what goes into a closet furnace replacement done right, from venting to service access.
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A new outdoor unit did not fix this homeowner’s comfort complaints. Our survey found a mismatched R-22 air handler, return and supply duct leaks, and missing duct insulation.
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See how Four Roots Air Solutions combines field experience, an INFICON D-TEK Stratus, and several leak-detection methods to locate and repair refrigerant leaks.
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What VRF heat recovery does, where the savings come from, and how we resolve chronic problems on poorly installed VRF systems across the Sacramento Valley.
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Water dripping through a restaurant kitchen ceiling traced back to rodent damaged refrigerant line insulation. Why spot repairs fail and what the fix requires.
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A commercial kitchen hit 80°F when a 5-ton rooftop unit lost its charge. How we found the rub-through leak, repaired it right, and had them cooling in 10 hours.